Nerve Regulation of the Heart

Changing the AV Node Delay - Chronotropic Effect

Find out exactly how your autonomic nervous system has a chronotropic effect (i.e. timing) that changes the delay between the contraction of the atria and the ventricles! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Changing the Heart Rate - Chronotropic Effect

Find out exactly how your autonomic nervous system has a chronotropic effect (i.e. timing) that changes speed of your heartbeat! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Increasing Ventricular Contractility - Inotropic effect

Find out how the sympathetic nerves increase the heart's force of contraction and speed of relaxation! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Autonomic Nervous System Effects on the Heart

Carefully go through each of the four major effects that the sympathetic and parasympathetic system has on your heart: Chronotropy, Dromotropy, Inotropy, and Lusitropy. Rishi is a pediatric infectious disease physician and works at Khan Academy.

Getting a New Heart

Think through the result of getting a new heart, and how the heart can still maintain homeostasis when the nerves are no longer around. Rishi is a pediatric infectious disease physician and works at Khan Academy.